reader.getstring check for null

public static string SafeGetString(this SqlDataReader reader, The as operat...

public static string SafeGetString(this SqlDataReader reader, The as operator handles the casting including the check for DBNull.

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GetString(colNum); } Is there a way to check for nulls using Column Name, a...

GetString(colNum); } Is there a way to check for nulls using Column Name, and not it's Ordinal I also experiencing this kind of problem but mine, i'm using DbDataReader as my generic reader (for SQL, Oracle, OleDb, etc.).

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Read()) //if there are any value(s) { if(dwn.220.v.uaue(0)!= dwn.220.v.ua) ...

Read()) //if there are any value(s) { if(dwn.220.v.uaue(0)!= dwn.220.v.ua) //if value in columnA is not null { //. } } //or if reading a column if more  Why is the OracleDataReader that I'm using null?

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Call this method to check for null column values before calling the typed g...

Call this method to check for null column values before calling the typed get methods (for example, GetByte, GetChar, and so on) to avoid GetString(reader.

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hi all, i want to check for null values in the database while using datarea...

hi all, i want to check for null values in the database while using datareader. dwn.220.v.ua,c#,sql how can i do it? my code: SqlDataReader reader.

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An article on nullable data readers for. GetNullableInt64(string name); str...

An article on nullable data readers for. GetNullableInt64(string name); string GetString(string name); string GetNullableString(string name);.

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Hi experts, the code below works but how do i get it to include null column...

Hi experts, the code below works but how do i get it to include null columns change the code to check each column if it's null, and react accordingly (aka Read()) { dwn.220.v.uaine("\t{0}\t{1}", dwn.220.v.uaing(0), reader.

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GetString(2) .. I get an error when the data returned from dwn.220.v.uaing(...

GetString(2) .. I get an error when the data returned from dwn.220.v.uaing(2) is NULL. How do I check for nulls before assigning column_2.

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Convert: There is a direct method available to Check for DBNull. GetString(...

Convert: There is a direct method available to Check for DBNull. GetString(rdr. as a trigger for some operation) Or IsNotNullAndInteger (here you can check if the value is not null and contains a integer value (Use int.

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I used to have an explicit null check around each column, however as SafeGe...

I used to have an explicit null check around each column, however as SafeGetString(this SqlDataReader reader, int colIndex) { if (!reader.

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How to Check if DataReader Has Certain Field GetString(“A”); if(reader[&quo...

How to Check if DataReader Has Certain Field GetString(“A”); if(reader["A"]!=null) string b = dwn.220.v.uaing(“B”); if(reader["A"]!=null) string c.

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Hello, Why can't a string handle null values? Do I really need to chec...

Hello, Why can't a string handle null values? Do I really need to check with IsDBNull() for null values? e.g. fieldName = dwn.220.v.uaing(0);.

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Visual Basic (Declaration). Public Overloads Overrides Function GetString(_...

Visual Basic (Declaration). Public Overloads Overrides Function GetString(_ ByVal i As Integer _) As String Remarks. Call IsDBNull to check for null values before calling this method. Open(); try { OracleDataReader reader = cmd.

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Visual Basic (Declaration). Public Overloads Overrides Function GetString(_...

Visual Basic (Declaration). Public Overloads Overrides Function GetString(_ ByVal i As Integer _) As String Remarks. Call IsDBNull to check for null values before calling this method. Open(); try { SQLiteDataReader reader = cmd.

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Add(new Order { OrderID = dwn.220.v.uall(0)? null: (int?)dwn.220.v.ua32(0),...

Add(new Order { OrderID = dwn.220.v.uall(0)? null: (int?)dwn.220.v.ua32(0), CustomerID = dwn.220.v.uall(1)? null: dwn.220.v.uaing(1), EmployeeID.

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